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Howards Cams Pacaloy Mechanical Roller Valve Springs 98374-1
Part Number: HRS-98374-1
Howards Cams Pacaloy Mechanical Roller Valve Springs
Valve Spring, Dual
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Estimated Ship Date: Oct 29, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
98374-1
Part Type:
Product Line:
Summit Racing Part Number:
HRS-98374-1
UPC:
840793125371
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.700 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.374 in.
Coil Bind Height (in.):
1.190 in.
Damper Spring Included:
Yes
Spring Rate (lbs./in.):
436 lbs./in.
Inside Diameter of Outer Spring (in.):
1.000 in.
Inside Diameter of Inner Spring (in.):
0.716 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Quantity:
Sold individually.
Installed Height (in.):
1.950 in.
Seat Pressure at Installed Height (lbs.):
150 lbs.
Open Height (in.)(application):
1.250
Open Pressure (lbs.):
455 lbs.
Remanufactured:
No
Howards Cams Pacaloy Mechanical Roller Valve Springs
Howards Cams and PAC Racing joined forces to engineer Pacaloy mechanical roller valve springs—a premium line designed for high-impact and endurance race applications. Machined from proprietary high-tensile steel, these coils offer a 550 lb. spring rate and will deliver the highest quality performance you can expect from valve springs. Equip your ride with a set of Pacaloys.
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